BSN Nitrix: Enhances Size! NITRIX® is what's called an a.m. to p.m. vaso-muscular dilator. This product works by expanding your blood vessels, which acts to increase blood flow, oxygen and nutrient delivery to your muscle cells. By ensuring the efficient travel of blood and nutrients throughout the body, you will experience improved workout performance, amazing pumps, all-day muscle fullness and vascularity, greater energy, a heightened resistance to fatigue and a greater ability to recover. NITRIX® is the foundation to all of your supplementation needs. Live for the pump! BUY IT NOW